1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <memory> 11 12 // unique_ptr 13 14 // Test unique_ptr move ctor 15 16 // test move ctor. Should only require a MoveConstructible deleter, or if 17 // deleter is a reference, not even that. 18 19 #include <memory> 20 #include <cassert> 21 22 #include "../../deleter.h" 23 24 struct A 25 { 26 static int count; 27 A() {++count;} 28 A(const A&) {++count;} 29 ~A() {--count;} 30 }; 31 32 int A::count = 0; 33 34 class NCDeleter 35 { 36 int state_; 37 38 NCDeleter(NCDeleter&); 39 NCDeleter& operator=(NCDeleter&); 40 public: 41 42 NCDeleter() : state_(5) {} 43 44 int state() const {return state_;} 45 void set_state(int s) {state_ = s;} 46 47 void operator()(A* p) {delete [] p;} 48 }; 49 50 int main() 51 { 52 { 53 std::unique_ptr<A[]> s(new A[3]); 54 A* p = s.get(); 55 std::unique_ptr<A[]> s2 = std::move(s); 56 assert(s2.get() == p); 57 assert(s.get() == 0); 58 assert(A::count == 3); 59 } 60 assert(A::count == 0); 61 { 62 std::unique_ptr<A[], Deleter<A[]> > s(new A[3], Deleter<A[]>(5)); 63 A* p = s.get(); 64 std::unique_ptr<A[], Deleter<A[]> > s2 = std::move(s); 65 assert(s2.get() == p); 66 assert(s.get() == 0); 67 assert(A::count == 3); 68 assert(s2.get_deleter().state() == 5); 69 assert(s.get_deleter().state() == 0); 70 } 71 assert(A::count == 0); 72 { 73 NCDeleter d; 74 std::unique_ptr<A[], NCDeleter&> s(new A[3], d); 75 A* p = s.get(); 76 std::unique_ptr<A[], NCDeleter&> s2 = std::move(s); 77 assert(s2.get() == p); 78 assert(s.get() == 0); 79 assert(A::count == 3); 80 d.set_state(6); 81 assert(s2.get_deleter().state() == d.state()); 82 assert(s.get_deleter().state() == d.state()); 83 } 84 assert(A::count == 0); 85 } 86
